I haven't yet found any other piece called "Slave's Polka". There was a 19th century dance form called a "Slav Polka" so this may just be a corruption of that. I took more liberties than usual making "corrections" on this one. Mostly misplaced bar lines and notes of values that didn't add up. (the kind of mistakes I make all the time when writing out by hand and ear) I'm pretty sure what I've come up with here is what the orginal transciber actually meant. Note that although the first two parts are written in two sharps they're really in the key of G.